Mitsubishi Electric A800 Plus Series Function Manual page 123

Tension sensorless torque control details
• Set parameters according to the requirement because the torque direction for winding/unwinding differs for each device.
The setting examples are shown in the following table.
When switching between the upper winding and lower winding, set Pr.1114 = "1" to switch between the STF and STR
signals. (Even when Pr.1114 = "0", switching between the upper winding and lower winding is enabled by changing the
Pr.1072 setting.)
Motor Installation
orientation
Motor
Shaft
Shaft rotation
direction during
forward motor
rotation
122
TENSION SENSORLESS TORQUE CONTROL
System setting
Winding/unwinding movement when the start
Material position
Right side
Upper winding/unwinding
Lower winding/unwinding
Left side
Upper winding/unwinding
Lower winding/unwinding
command is input
STF signal ON
Upper winding/unwinding
Lower winding/unwinding
Lower winding/unwinding
Upper winding/unwinding
Upper winding/unwinding
Lower winding/unwinding
Lower winding/unwinding
Upper winding/unwinding
Parameter setting
Pr.1114
STR signal ON
0
1
0
1
Pr.1072
0
1
0
1
1
0
1
0